220V Single Phase Power Supply Welders & Plasma Cutters

220V single phase welding and plasma cutting machines plug into 3 or 4 prong outlets. These are the same kind of outlets used for washers and dryers, and carry twice the voltage of your typical 110V 2 prong outlet.
Shop 220V single phase electric welders from popular brands like MillerVictorBlue Demon, and Hobart.

Previous 1 ... 9 10 11 12 13 14 Next
320 items found
Miller Syncrowave® 250 DX
Miller Syncrowave® 250 DX
Out of Stock
Miller CST™ 280 Tweco 907251011 Miller CST™ 280 Tweco
Miller CST™ 280 Tweco
Out of Stock
Millermatic 350P Autobody Package
Out of Stock
Miller Dynasty 210 DX 120-480 V, Wireless Foot Control Complete Package #951669 Miller Dynasty 210 DX 120-480 V, Wireless Foot Control Complete Package
Miller Dynasty 210 DX 120-480 V, Wireless Foot Control Complete Package
Out of Stock
Miller Dynasty 280 Dx (With Cps) Complete With Wireless Foot Control #951469
Miller Dynasty 280 Dx (With Cps) Complete With Wireless Foot Control
Out of Stock
Get the best price on the Dynasty 210 welder 907685002 Miller Dynasty 210 120-480 V, CPS
Miller Dynasty 210 120-480 V, CPS
Out of Stock
Miller Syncrowave® 350 LX 907199 Miller Syncrowave® 350 LX
Miller Syncrowave® 350 LX
Out of Stock
Get the best price on Miller Miller Dynasty 210 DX (120-480 V)
Miller Dynasty 210 DX (120-480 V)
Out of Stock
Previous 1 ... 9 10 11 12 13 14 Next
220V Single Phase Power Supply

Before getting into 220v power, let’s address single-phase power. Single-phase (AKA “1-phase”) power is what you have running into your home. It is a two-wire AC circuit—one power wire (the phase wire) and one neutral wire. Electrical current flows between the power wire and neutral wire. Whereas, 3-phase power is a three-wire AC power circuit, with each phase 120-degrees apart.  The main benefit of 3-phase power is providing power at a constant rate, without the peaks and dips inherent in 1-phase power.

Most homes have standard AC outlets rated at 110v. In simple terms, a 220v outlet has 2 wires combined to produce twice the amount of voltage from a 110v outlet.  For large appliances (and 220v welding machines) in need of more power, a 220v outlet is necessary. Your washer and dryer, for instance, are plugged into 220v outlets. The plugs for these appliances are large, 3-or 4-pronged plugs in a dark-colored, circular housing, and the outlet they plug into is similarly round and dark-colored.

As you would expect, a 220v welder will have more power than a 110v welder. The extra 110v enables a 220v welder to weld thicker metals than a 110v welder. If you anticipate the need to weld metal thicker than 1/8” steel (the maximum weld capacity of most 110v welders), you will be better off with a 220v machine. It is important in you choose your power supply by power source.

Voltage rating confusion over the numbers used

It’s not uncommon to see 220-volt welders described as 230, 240 or 250 volts. Actually, they are all the same. The differing numbers are used to account for periodic variations in the power supply. When electricity runs through the wiring in a house, the voltage fluctuates. Sometimes it’s higher than 220v, sometimes it’s lower. In a similar manner, 110-volt appliances are sometimes described as 115, 120 or 125 volts.

What does a 220V outlet look like?

Single Phase Welding Machine 3 prong          220v welder- 4 prong outlet

- Larger than a 110v outlet, usually round, and black or dark brown instead of white.
- Can have three slots or four, one or more of which is usually positioned horizontally or on an angle. (Four-slot outlets have a ground wire.)
- Unlike 110 outlets, which are typically in pairs (“duplexes”), 220v outlets are single outlets.
- 3-prong outlets were the standard up until 1996
- 4-prong outlets have two “hot” wires and separate ground and neutral wires
Why aren’t all household outlets 220v?

Two reasons: cost and safety. Copper wire is expensive, and 110v outlets require less of it. In a 110v circuit, the wire is typically 12 gauge, while a 220v circuit requires 10 gauge or larger. Besides, most appliances in a house don’t need 220v—just large ones like the dryer and oven.

Safety is also a factor. An accidental shock from a 220v outlet is twice as painful as one from a 110v outlet (and can even be fatal). For these reasons, most homes are built with 220v outlets only where they’re really needed - in the laundry room and kitchen.

The ideal solution for home use: Get a 220v outlet installed in the garage

Having an electrician install a 220v outlet in your garage will allow you to safely use your welder in the garage or just outside of it. The cost for this varies, depending on the distance between the outlet and your electrical box, and whether your electrical supply is adequate for another 50Amp breaker (most 220v welders are 50amp). The copper wire runs about $6 per foot, so a long run from the outlet to the electrical box can add up fast. Also, the longer the distance, the longer it will take the electrician to run the wire and the more likely there will be obstacles to deal with. 

Do you need to upgrade your electrical service to add a 220v outlet?

If your home has 50Amp or 100Amp service, you’ll most likely have to upgrade it to 150 or 200 Amps. You’ll need an electrician for this, and it can run anywhere from $800 to $3,000, depending on electricians’ rates in your area. However, if you need to upgrade the electrical wiring (a likely scenario in any house over 40 years old), the job involves opening up walls to access the wiring and then repairing the walls. For an average-sized house, this can cost up to $8,000. For a large home with difficult to reach areas, the cost can balloon to $20,000 or more.

It’s worth rethinking the need for a 220v welder then and start taking a look at 110v welders or buying a generator to power the 220v welder. If the expense and hassle of adding a 220v outlet is too great, a generator (or a combination generator/welder) is a good alternative.

Welders Supply carries a great selection of both diesel and gasoline engine-driven welding machines. Also, shop Welders Supply Company's full selection of welding machines and accessories.
Tillman Elk Skin Welding Gloves #850
Tillman Elkskin Welding Gloves
View Product
Gateway StarLite Safety Glasses #469M On sale safest durable beginner safe welding goggles for professionals
Gateway StarLite Safety Glasses - Blue Mirror Lens
View Product
Jackson Safety VIBE Earmuff #20774
Jackson Safety, VIBE Earmuff
View Product
Tillman Green Sleeves #6217
Tillman Green Sleeves
View Product
Tillman Firestop Jacket #6230
Tillman Firestop Jacket
View Product
Hypertherm Powermax 45 Shield Deflector Part#220674
Hypertherm Powermax 45 Shield Deflector
View Product
Tillman Backhand Pads Part#550
Tillman Backhand Pad
View Product
Miller Fastip Contact Tips #2061(86,87,88,89,90)
Miller Fastip Contact Tips 2061(86,87,88,89,90)
View Product
Miller Millermatic 211 #907614 - 6 Free items with purchase Millermatic 211 Auto-Set Mig Welder
Millermatic 211 Auto-Set Mig Welder
View Product
Tillman Cowhide & Polar Fleece Winter Work Gloves Part#1584
Tillman Cowhide & Polar Fleece Winter Work Gloves
View Product

Be the first to know about upcoming specials!